Bistorta species

 

https://08511630493324166816.googlegroups.com/attach/41513ceb24bf2141/DSC04076.JPG?part=0.1&view=1&vt=ANaJVrHTo5HK7jk5y-q2gFz3HmaanXSt5Uk4cwpsQtEDJupikcydQwk51ThBOsYYwwFfu4n4JHOpkHmWZ6sB9mpoBzYCq10bG9wRTkYTzlEt06vUzx4QqFM
ID the flower at Tawang AP
: These tiny flowers were sprouting on rocks and gave such a mesmerising effect that it cannot be described in words. I have taken a very close up picture of these flowers. The rocks looked like red carpets from a distance. Taken in October this year on way to Bumla Pass at about 14K feet. 
- This is Bistorta sp. (Polygonaceae). Pl post some better photos with leaves for species identification.

https://groups.google.com/group/indiantreepix/attach/a7be8065975256b3/IMG_7896.JPG?part=0.1&authuser=0&view=1
For ID- SP1- 271112:
Please help me to identify this flower.
Location -
Cherapunji
Date: May 2010
Habitat- Wild
Bistorta spp, leaves and Habit is require to tell species.